How do I sort a data table in R?

How do I sort a data table in R?

To sort a data frame in R, use the order( ) function. By default, sorting is ASCENDING. Prepend the sorting variable by a minus sign to indicate DESCENDING order.

How do you insert a table in R markdown?

Upon installing, inserttable registers a new RStudio Addin (Insert Table) that can be used to easily insert a table in a Rmd document. To use it, open a Rmd document and, with the cursor within a r chunk and select “Addins –> Insert Table”.

What is library DT?

DT is an interface to the JavaScript library DataTables based on the htmlwidgets framework, to present rectangular R data objects (such as data frames and matrices) as HTML tables. You can filter, search, and sort the data in the table.

How do I sort a table by one column in R?

Use order function and a – (minus) sign before the column to be arranged in descending order and no minus sign if you want the Result in ascending order.

How do I sort a column in alphabetical order in R?

Rearrange or reorder the column Alphabetically in R: Rearranging the column in alphabetical order can be done with the help of select() function & order() function along with pipe operator. In another method it can also be accomplished simply with help of order() function only.

How do you sort a table by value?

To sort a table in Excel by a single column, click into a cell within the column by which to sort the data. To sort the table in either ascending or descending order by the column’s data values, click either the “Sort A to Z” or “Sort Z to A” buttons in the “Sort & Filter” button group on the “Data” tab in the Ribbon.

How do you sort a table in descending order?

Sort a table in Word

1. Select anywhere in the table.
2. Select Table Tools Layout > Sort.
3. Choose your sort criteria: Select the column you want to Sort by. To sort on a second column, select Then by and select another column. Select Ascending or Descending.
4. Select OK.

What is the table function in R?

table() function in R Language is used to create a categorical representation of data with variable name and the frequency in the form of a table.

What is R data table?

data.table is an R package that provides an enhanced version of data.frame s, which are the standard data structure for storing data in base R. In the Data section above, we already created a data.table using fread() . We can also create one using the data.table() function.

What package is data table in R?

Data. table is an extension of data. frame package in R. It is widely used for fast aggregation of large datasets, low latency add/update/remove of columns, quicker ordered joins, and a fast file reader.